Cam:

According to your response you can not preview Trial Balance or Detail Listing, so this is not a printer issue.

ePrint? Did you by chance download and install the ePrint Sampler?

The symptoms you describe are almost always the temp folder, either it has something in it that it shouldn't or your rights to the folder have been restricted. Less likely, but still a possibility, is the fact that the install of Ledger has been disturbed in some way. Beyond this it will be difficult to troubleshoot this further in the forum. Please give us a call so that we can help you out.