Print Issues with Reporting Services

I developed and deployed a report using VS.net. Reporting Services gives you the option on the web page to print the report or export to another format. When choosing to print, I am unable to get the report to print in landscape mode on standard letter paper. What is the relationship between the margin properties (which seem to have no impact) on the report? the body of the report? and the printer?
The report size doesnt seem to matter (10 x 7.5 inches) tried changing margins here also
The body size doesnt seem to matter (9.75 x 7 inches) and here

Does the issue lie with
a) the printer properties
b) Reporting services
c) IE
Im stumped!!

Hopefully, you are using the Sep. CTP or later, since there was a known issue earlier with landscape printing. After the report server was upgraded, I still had to manually delete the old RSClientPrint Class file on my PC, which was cached under the "Downloaded Program Fles" folder (RTM version is: 2005,90,1399,0).