a potentially dangerous request

Using the forums is very hit and miss for me.

I keep getting this error

Server Error in '/' Application.

A potentially dangerous Request.Path value was detected from the client (&).

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Web.HttpException: A potentially dangerous Request.Path value was detected from the client (&).

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

[HttpException (0x80004005): A potentially dangerous Request.Path value was detected from the client (&).]

   System.Web.HttpRequest.ValidateInputIfRequiredByConfig() +11406907

   System.Web.PipelineStepManager.ValidateHelper(HttpContext context) +184

Also i wont stay logged in.

Also i can't preview posts, i get this

NoFollow is applied to all links from this forum (rel="nofollow")

I think quite a few of us our experiencing the same issues. In a different post, Tom replied he is looking into it.

You are not alone <img src="smileys/smiley2.gif" border="0" align="middle" />

Yes, I am looking into this, sorry for the inconvenience!

Should be resolved now, please let me know if this is not the case. It's a hard one to debug as I can't consistently reproduce it.