The leading share index has hauled itself into positive territory as hopes rise that European leaders will bring the Greek debt situation to a resolution.Germany's Angela Merkel and France's Nicolas Sarkozy called on a new rescue package to be agreed upon as quickly as possible.In corporate news, chipmakers are in focus.The price bluetooth chip specialist CSR is to pay for US video streaming outfit Zoran has been slashed to reflect a worse than expected trading performance by Zoran in the second quarter. Zoran shareholders will now receive $6.26 in cash plus 0.589 CSR shares (in the form of American Depositary Shares) for each Zoran share held, reducing the price tag for CSR from $680m to $484m. CSR is now one of the top risers having laboured in early trading.Computer chip designer ARM has acquired privately owned Obsidian Software, a US firm specialising in very fication and validation used in the design of increasingly complex processors. Elsewhere in the world of tech, electrical components manufacturer Laird is to exit its under-performing handset antenna business, the company announced the day after it rejected an offer proposal from US rival Cooper Industries.London-based pub operator Capital Pub Company is fizzing after it emerged it rejected a takeover proposal from its bigger rival Fuller, Smith and Turner. Fuller's, which operates in London and the Southeast of England, said it wrote to Capital's board in March about a possible all-cash offer of 175p a share, which was rejected, as was an offer worth 200p a share the following month. Capital said it had considered both offers and "decided that even the higher indicative offer substantially undervalued the business and its prospects." Pawnbroker H&T is shining after saying it expects profits for the first half to beat expectations after a strong start to the year. The company has benefited from the continued rise in the gold price.Sweetener maker PureCircle has turned a little sour after it said it expects to book one off costs of $10-15m in 2011 after it scaled down production and reduced inventory levels to match current demand and to improve operating cashflows. The share price of IndigoVision, the internet video security company, fell by almost a third on Friday after the group warned that sales for the full year will fall short of its expectations. "Since our interim results announcement in March, the Group's rate of growth has slowed. We continue to expect that full year sales will exceed last year's revenue of £28.0m, but that they will fall short of internal forecasts," the statement said. FTSE 100 - RisersAnglo American (AAL) 2,858.00p +1.67%Glencore International (GLEN) 483.50p +1.62%Kazakhmys (KAZ) 1,259.00p +1.53%GKN (GKN) 205.10p +1.48%Lonmin (LMI) 1,402.00p +1.45%Xstrata (XTA) 1,264.50p +1.32%Rio Tinto (RIO) 4,132.50p +1.29%Petrofac Ltd. (PFC) 1,500.00p +1.28%RSA Insurance Group (RSA) 135.60p +1.27%Aggreko (AGK) 1,889.00p +1.23%FTSE 100 - FallersKingfisher (KGF) 264.50p -1.31%Schroders (Non-Voting) (SDRC) 1,264.00p -1.02%Inmarsat (ISAT) 567.00p -0.79%Smith & Nephew (SN.) 649.00p -0.69%Weir Group (WEIR) 2,000.00p -0.65%HSBC Holdings (HSBA) 604.40p -0.62%ICAP (IAP) 453.20p -0.55%Rexam (REX) 374.70p -0.53%Schroders (SDR) 1,521.00p -0.52%Morrison (Wm) Supermarkets (MRW) 293.80p -0.47%FTSE 250 - RisersSupergroup (SGP) 905.50p +8.18%St. Modwen Properties (SMP) 192.80p +4.78%Kenmare Resources (KMR) 47.33p +4.02%Daejan Holdings (DJAN) 2,838.00p +3.96%CSR (CSR) 319.30p +3.64%Hunting (HTG) 754.50p +3.36%Micro Focus International Plc (MCRO) 364.50p +3.11%Pace (PIC) 108.80p +2.84%Debenhams (DEB) 69.60p +2.50%SIG (SHI) 142.40p +2.45%FTSE 250 - FallersDunelm Group (DNLM) 402.70p -5.54%Imagination Technologies Group (IMG) 445.20p -4.28%Brewin Dolphin Holdings (BRW) 147.50p -4.22%International Personal Finance (IPF) 333.20p -3.14%Exillon Energy (EXI) 396.20p -2.39%SDL (SDL) 693.00p -2.39%Cable & Wireless Worldwide (CW.) 47.90p -2.34%SThree (STHR) 378.00p -2.30%Euromoney Institutional Investor (ERM) 632.50p -2.17%Lamprell (LAM) 331.40p -2.16%