Installing Parallels 4 on OS X 10.6.3

I have just upgraded to a new iMac running OS X 10.6.3. I have downloaded 3848.450204.dmg. The installation is failing after the restart with the following error message;

Process: prl_client_app [196]
Path: /Applications/Parallels Desktop.app/Contents/MacOS/prl_client_app
Identifier: prl_client_app
Version: ??? (???)
Code Type: X86 (Native)
Parent Process: launchd [168]

Date/Time: 2010-04-15 14:00:13.851 +0100
OS Version: Mac OS X 10.6.3 (10D573)
Report Version: 6

Interval Since Last Report: 1425 sec
Crashes Since Last Report: 10
Per-App Crashes Since Last Report: 4
Anonymous UUID: 2D4F22D7-E7E2-466B-A220-521D09F2FF09

Exception Type: EXC_BREAKPOINT (SIGTRAP)
Exception Codes: 0x0000000000000002, 0x0000000000000000
Crashed Thread: 0

Dyld Error Message:
Library not loaded: /Library/Parallels/Parallels Service.app/Contents/MacOS/libQtOpenGL.4.dylib
Referenced from: /Applications/Parallels Desktop.app/Contents/MacOS/PD_Starter.app/Contents/MacOS/prl_client_app
Reason: image not found

 

updates?

any updates? how did you fix it?