Though, if you don't have the time for a whole test, running the same app in a clean wine prefix with wine 1.1.18, for instance, could already be helpful, since the bug has been reported the first time under 1.1.19.
Thanks everyone for taking the time to help tracking this bug down.
This is then much less lovely, as I only found traces of such problem with outdated drivers (basically, Nvidia GeForce 5xxx and ATi cards).
Does anyone here have the time for a regression testing ? http:// wiki.winehq. org/RegressionT esting
Though, if you don't have the time for a whole test, running the same app in a clean wine prefix with wine 1.1.18, for instance, could already be helpful, since the bug has been reported the first time under 1.1.19.
Thanks everyone for taking the time to help tracking this bug down.