just DO NOT DO 1 thing: DON'T apply v1.41 over 1.4. that'll cause troubles
if you install 1.41 over a prior version than 1.4, you'll be fine
Yes. Larian commented on this. You can install 1.41 over any version, except for version 1.4, because a mistake will cause 1.4 savegames to not work properly with 1.41. However, Larian also plans for a new 1.42 patch today which should help fix this problem, plus a few more (or somthing like that)...
Yes, they work pretty damn fast, you can give them that. Poor guys. <img src="/ubbthreads/images/graemlins/smile.gif" alt="" />
Tovi 
