seems to me your having a WINDOWS PROBLEM.
1. are you running XP?
2. if so its it the SP3 update version?
3. with XP & and old legacy type ROLAND, its internal cards and imprinted cmos CANT DEAL WITH SP2 or SP3!!!
i run XP, but NEVER INSTALLED SP2 or SP3. and i was cuttin to a pnc-1100.