NI-PAL Service Manager problem at startup of PC

[EIEN1]

I have been using the same version of LabVIEW (8.6) in the same computer with the same DAQ (PCI-6221) and the same OS (Windows XP Pro SP2) for a couple months but since a couple days ago, at startup I get a message saying that NI-PAL encountered an error and needs to close. When I click on "View more" it says that the problem is in szAppName: nimxs.exe szAppVer: 2.1.0.49152 szMonName: nipalut.dll szModVer: 1.5342.3.0 offset 00001204, and then, when I open an .exe built from a VI file, I get the error -2147220712, saying that such error occurred at DAQmx Create Channel (AI-Voltage-Basic) .vi: 4 and (AO-Voltage-Basic) .vi: 1(two different pop ups) and that there is no description of the error.

To my knowledge no one have added/modified/deleted any component or module.

[jagutier]

Hi EIEN1, 

This problem is due to a corruption in DAQmx. A DAQmx reinstall should solve the problem. If it persists you should try erasing Max Database: 

http://digital.ni.com/public.nsf/allkb/2C7480E856987FFF862573AE005AB0D9

I hope this information is useful, 

Cheers!