TORONTO (Reuters) — The Toronto Stock Exchange's main index inched to its fourth record in as many sessions yesterday as strength in the technology and utilities sectors overshadowed a retreat in commodities.The S&P/TSX composite index finished up 6.85 points, or 0.05 percent, at 14,112.19.

It surpassed consecutive high closing marks set Wednesday through Friday. The exchange was closed Monday for the Victoria Day holiday.

Earlier in yesterday's session, the index also jumped to a intraday record of 14.161.94.

Overall, five of the TSX index's 10 main groups rose, led by a 1.3 percent rise in technology shares and a 1.6 percent rise in the utilities sector.

Shares of Nortel Networks Corp. rose C$1.10, or 4.2 percent, to C$27.61 after the Ontario Securities Commission approved a settlement with the telecom equipment maker over misleading accounting practices and regulatory filings that were made several years ago. Nortel will pay C$1 million ($920,000) toward the cost of investigation by the OSC.

Elsewhere in the sector, Research in Motion surged C$7.58, or 4.6 percent, to C$172.88.

Units of TransAlta Power LP rose 28 Canadian cents, or 3.6 percent, to C$8.09 after hired financial advisors and put itself up for sale following changes last year to Canadian tax rules related to income trusts.

TransAlta Power is a partnership 50.01 percent owned by TransAlta Corp. , Canada's biggest investor-owned electricity company.

Energy shares less than 1 percent amid a drop in U.S. crude oil prices, which fell C$1.30 to C$64.97 a barrel on easing U.S. gasoline supply concerns.

Talisman Energy Inc. slipped 8 Canadian cents to C$21.79, and Canadian Natural Resources Ltd. fell 9 Canadian cents to C$70.91.

The resource-laden materials sector dipped 0.7 percent amid weakness in most metals prices.