Mysql query fails only when I use MD5(id)

Hi.
Just moved a site to a new hosting provider. Suddenly all pages that use md5(id) in the query fails with the following error :

Microsoft VBScript runtime  error '800a000d'
Type mismatch
/firebee_test.asp, line 21

Please see my attached script - I can't really make a more simple example.
The script only fails in the MD5 scenario.

Hosting is a Windows 2003, fully patched. IIS6.

Any ideas, hints, tests, well almost anything goes. Please help me out here :-(

Cheers,
Mark

<%
Session.LCID = 1030
dbsetup = "Driver={MySQL ODBC 3.51 Driver}; Server=xxx; Port=3306; Option=131072; Stmt=; Database=xxx;uid=xxx; pwd=xxx;"
Set dbConn = Server.CreateObject("ADODB.Connection")
dbConn.Open dbsetup
 
If request.querystring("md5") = "true" Then
	sql = "SELECT md5(id), varenavn FROM produkter ORDER BY id;"
Else
	sql = "SELECT id, varenavn FROM produkter ORDER BY id;"
End If
 
Set rs = dbConn.Execute( sql )
if not (rs.bof OR rs.eof) Then
	arrVarer = rs.getrows
End if
Response.write "<a href='?md5=false'>UDEN md5 (SQL = SELECT id, varenavn FROM produkter ORDER BY id;)</a><br/><a href='?md5=true'>MED md5 (SQL = SELECT md5(id), varenavn FROM produkter ORDER BY id;)</a><br/><br/>"
Response.write "<table width='300' border='1'><tr><td>ID</td><td>Varenavn</td></tr>"
if UBound(arrVarer,2) > 0 Then
	For i = 0 TO Ubound(arrVarer,2)
		Response.write "<tr><td>"& arrVarer(0,i) &"</td><td>"& arrVarer(1,i) &"</td></tr>"& vbCrLf
	Next
End if
Response.write "</table>"
%>

Select all Open in new window