Mac shut down slow!!

[CongD]

i am a mbp user and i installed the parallel 5 for win7,after that my mac become shut down very slow (appox. 1 min). i searched on google and did everything i can but still cant fix it.
my mbp: 2.4g cpu, 4g ram, 100g free space for hard driver

i did:
changed the win 7 memory form 512mb up to 2g
reset the PRAM
uninstall and re-install

i was read sth abt the permission, but i didnt find the step to step tutorial for it so i didnt try it

system log:
Apr 29 10:01:45 CDs-MacBook-Pro shutdown[250]: halt by CDOU:
Apr 29 10:01:45 CDs-MacBook-Pro shutdown[250]: SHUTDOWN_TIME: 1272531705 18693
Apr 29 10:01:45 CDs-MacBook-Pro Parallels[252]: Stopping Parallels Dispatcher Service
Apr 29 10:02:45 CDs-MacBook-Pro Parallels[283]: Stopping Parallels networking
Apr 29 10:02:45 CDs-MacBook-Pro prl_naptd[122]: Exiting Parallels Network Daemon
Apr 29 10:02:47 CDs-MacBook-Pro Parallels[308]: Unloading kernel extension prl_netbridge.kext
Apr 29 10:02:50 CDs-MacBook-Pro Parallels[333]: Failed to unload kernel extension prl_netbridge.kext
Apr 29 10:02:50 CDs-MacBook-Pro Parallels[338]: Unloading kernel extension prl_vnic.kext
Apr 29 10:02:52 CDs-MacBook-Pro Parallels[364]: Failed to unload kernel extension prl_vnic.kext
Apr 29 10:02:52 CDs-MacBook-Pro mDNSResponder[28]: mDNSResponder mDNSResponder-214.3 (Feb 11 2010 04:49:16) stopping
Apr 29 10:02:52 CDs-MacBook-Pro DirectoryService[15]: BUG in libdispatch: 10D573 - 1960 - 0x10004004
Apr 29 10:02:52 CDs-MacBook-Pro WindowServer[78]: hidd died. Reestablishing connection.
Apr 29 10:02:52 CDs-MacBook-Pro WindowServer[78]: Unable to create event queue via hidd: (0x10000003)


CAN ANYONE HELP WITH IT?
MANY THANKS!!

 

[CongD]

I believe it is something to do with the prl_disp_service, become if i quit the process manually the mac just shut down in 3 seconds..