I appear to have a common problem with mouse control when used remotely via RDP. In my setup I have an XP host running VPC 2004 SP1 with a VM running MSDOS 6.2. I have installed the DOS additions that were packaged with VPC 2004 SP1 and they appear to be working i.e. folder sharing and idle detection are Ok. However, when connected to the XP host via RDP, the mouse does not respond properly. Sometimes it does move but in the wrong direction - it is basically unusable. I have also noticed that no matter what I do, the Pointer Integration option on the settings dialog for the VM remains grayed out. This suggests that although the additions are installed there is some other problem... or it just does not work under MSDOS.