Issues with Internet Explorer 8 and Hosted CRM 4.0

Over the last couple of weeks, we have been testing IE8 with hosted CRM 4.0 and found a couple of issues.

Specifically, when users have Microsoft Dynamics CRM 4.0 for Outlook installed and Outlook is running and then attempt to log in through the Microsoft Dynamics CRM 4.0 web client, Microsoft Dynamics CRM 4.0 becomes temporarily disabled. A message pops up from the CRM icon in the Windows system tray: "Signed Out. You successfully signed out of Microsoft Dynamics CRM. To re-enable the CRM toolbar, the user has to restart Outlook.

Other issues include login screens appearing when trying to use Microsoft Dynamics CRM 4.0 for Outlook with IE8 installed.

Uninstalling IE8 and reverting to IE7 does not appear to resolve this issues.

We have raised the issues with Microsoft Premier Support and expect to have resolutions provided shortly. In the meantime, our advice is not to upgrade to Internet Explorer 8. Users should be careful applying Windows Update as we expect IE8 to be automatically downloaded as part of Windows Update services within the next few weeks.

Update (Tue 28/04/2009): Thanks to Jim Sheehan at PowerObjects, I've discovered that using the shortform URL login (e.g. https://companyname.addictivecrm.com) prevents me be signed out of Microsoft Dynamics CRM for Outlook. Still a few other gremlins though when using lookup features.