The trouble: sometimes most keys used for actions, like opening the inventory, firing the weapon, swapping the weapon or reloading it become "stuck", i.e. they do not work at all no matter what I do. While I still can walk around using arrows or numpad keys, everything else is impossible to do (which is kinda annoying when you are in an arachnotron "twisted passages" cave. When the keys begin to work again, sometimes the game goes through last keys I attempted to press and VERY QUICKLY, ending up with opening inventory with the letter 'i' and then instantly using up the item assigned to the letter 'i'.
At first I blamed my keyboard but it turns out that it works fine in other applications like QIP or Firefox (otherwise how the hell would I type this message?).
It happens only with letters, as I understand, because if I press the spacebar, I will get the "unknown command" message - when the keys become "stuck" and I press them, nothing actually happens, no "unknown command". Arrows work fine - as I have already mentioned, during this unfortunate event I can freely walk around and hope my techguy's ass won't be zapped by arachnotrons while he is completely helpless.
Any ideas what is wrong here?
DoomRL 0.9.9.4, Windows XP SP2