Report ROI has Stop working in Dynamics SL

Issue:

I'm getting this error when tried to click the print preview button in all Report ROI.

 Environment: Solomon 2011

System type: 32 bit OS windows 7

Cause1:

•  An invalid printer specified in Microsoft Dynamics SL Printer Options.

• In a Terminal Server or Citrix environment, every time that you log on, the name of the printer may change slightly.

Solution: 

      1.  Open Printer Options (98.220.00) and specify a valid printer / Use Windows Default printer.

Cause2:

•  The DLL file “u2lsol4.dll” may missing in \WRKSTN\Windows\Crystal under SL  root folder

Solution: 

1. Browse the “u2lsol4.dll” file under the SL installation files and place it in to the above mentioned path.
2.  Register the above DLL