Who has problems with a trembling mouse cursor might try to experiment with the following entries in rise2.ini:
ForceHardwareCursor=0
ForceGDICursor=0
ForceBWCursor=0
People I know who had the problem did solve it with this entry:
ForceHardwareCursor=1
ForceHardwareCursor=0
ForceGDICursor=0
ForceBWCursor=0
People I know who had the problem did solve it with this entry:
ForceHardwareCursor=1