Motorola Xoom :: Scrolling On Remote Desktop View Without Screen Moving?

I got my Xoom primarily to access my database and bookmarked & annotated PDFs during client home visits and SS hearings without bringing a laptop. Of course, the Verizon salesperson said I could do all that. But, I could not find a PDF reader that retains bookmarks . My files are sometimes 400-600 or more pages long. I can't scroll through page by page to quickly find what I need using docs to go.

I set up remote desktop for Xoom (phonemypc) as an alternative. This works great(except for brief lags in response times) but I have to enlarge the view on my Xoom to read the remotely controlled monitor screen. I can't see a whole page at once because of this. If, though, I try to scroll in any of the remote desk top views, the Xoom screen moves. I don't want my Xoom screen to move. I want to move within the program on my remote desktop.

Will a bluetooth mouse enable me to use scroll bars without moving the Xoom screen? Or is there an app or method for stopping the Xoom screen from moving when I try to slide a scroll bar on my remote desktop screen? (trying to pull up the traditional right click menu on a scroll bar is a hit and miss experience and it takes multiple tries to get where I need to go in a document--it's too slow).