Those green shoots of economic spring here in the UK are beginning to feel a mite lonely as the gross domestic product figures from the US yesterday brought more evidence that the recovery there seems to have stalled, and analysts are redoing their sums on IBM Corp in light of recent information: Furman Selz removed the company from its recommended list and analyst Peter Lieu said he lowered his 1993 and 1994 earnings estimates because of the extreme gross margin pressure on the mainframe business; Bear Stearns & Co analyst Cliff Friedman cut his 1993 and 1994 earnings estimates on IBM, but bravely maintains a hold rating on the stock; he trimmed his 1993 estimates on IBM to break-even from $1.25 a share and cut his 1994 estimates to $2.25, from $3.25, again citing weak mainframe demand.