PrintToPrinter Crystal Runtime method hangs

Hello,

I read couple of thread and tried couple of things.

I have asp.net webpage that print the crystal report using printtoprinter method. I used to print using \\printserver\printername

since we moved to x64 bit environment windows 2008 R2, this same process just freeze the page.

I tried installing the printer on the same server, still it would freeze the webpage

using following:

Crystal report 2011 (13) and crystal runtime

.net 4.0

Windows 2008 R2 64 bit machine

Can someone please help, is there anythign different with R2 machines that we need to enable. Print job doesnt go to Printer, page keeps running forever.

Thank in advance for help