No SP2/Resolume issues on either of our computers (AMD laptop, P4 Shuttle). Although of 15 or so SP2 updated computers - 4 never restarted and need to have windows reinstalled. Most of this was directly connected to BIOS updates and P4 prescott support.
All the others worked perfectly - also on the question of performance, I read an article doing a good test of performance before and after SP2 on a number of PCs and they only noticed a 0.4% performance loss after installing - not too major.
the current download for resolume 1.51 is corrupt - i got the same message when i tried to reinstall,fortunately i found an old copy of the installer on my pc and it worked fine.