If you are experiencing printing problems with your reporting services pages in either sharepoint integrated mode or native mode, here's the deal. Tuesday (10/13/08) microsoft release a hotfix for windows XP. Something to do with Killbits. Anyways, but one of the issues this hotfix takes care of is security holes within activex controls. One of these security holes is utilized by the reporting services print activex control. So your reports won't print. Well don't you worry cause before this hotfix came out, microsoft released a hotfix for sql server that replaced the print activex control with a modified version that will work despite the new security update.
HOWEVER, this hotfix for sql server DOES NOT fix reporting services sharepoint integrated mode! so if you are using sharepoint integrated mode, you are still screwed. Well, its time to call microsoft and wait in the queue for 2 HOURS, and ask them for the new updated version of reporting services sharepoint integrated mode msi. In which, you have to uninstall the old msi, run a cumulative update (which may have bugs in the large batch of hotfixes applied), and reinstall sharepoint integrated mode with the new msi file. HUGE headache! But luckily, being a consultant, I just aided in identifying the issue and let the client handle the fun stuff of calling microsoft and getting the CU and new MSI. Well, if you are experiencing problems… This might be your issue. I don't have the KB numbers and error messages on me at the moment, but I'll post them soon.
Error: "Unable to load print control"
chadclarke