BizTalk Administration Console Weird Error

Hi All!

 For the last two days we are facing a weird error while trying to load biztalk group in the Administration console. It doesn't open and gives an error (which is pasted at the end of this post). After few refreshes it gets it and loads it (which means everything is in place), but sometimes it takes longer then that. BizTalk server is functioning alright during all this, processing requests and we can deploy to it as well, all the services are running as well. Once the Group Node expands it is normal and we have all the applications in place.

 In the last two days we've installed Sybase on that server, which over written some Environment variables like Path etc. We changed all the modified env. variables to as they were before, but are still facing this problem.

Here is the complete description of the error as given by BizTalk:

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Failed to load Group [SVCTAG-2YJ4K1S\SQLEXPRESS:BizTalkMgmtDb1] data providers. (Microsoft.BizTalk.Administration.SnapIn)

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For help, click: http://go.microsoft.com/fwlink/?LinkId=47400&ProdName=Microsoft+BizTalk+Server+2006&ProdVer=3.5.1602.0&EvtSrc=Microsoft.BizTalk.Administration.SnapIn.Properties.Errors&EvtID=FailedLoadingGroupProviders

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Provider load failure  (System.Management)

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Program Location:

   at System.Management.ManagementException.ThrowWithExtendedInfo(ManagementStatus errorCode)
   at System.Management.ManagementObject.Get()
   at Microsoft.BizTalk.SnapIn.Framework.WmiProvider.SelectInstance(String className, String keyClause, Object[] keyValues)
   at Microsoft.BizTalk.Administration.SnapIn.Nodes.GroupNode.ConnectToProviders()

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Hope to hear from you people soon,

Regards,

Sajid.