Thanks for the reply .
SharePoint version is enterprise, browser is IE8 but this is the same in Firefox and Chrome as well..
The settings we are using are:
<Lists>
<List SiteUrl="./dss" ListName="Desktop Support Services Calendar" IncludeSubsites="false" IncludeThisSite="false" IsRollUpList="false" UseUploadFormInLayoutsFolder="false">
<DependentLists />
</List>
</Lists>
CAML filter:
<Geq> <FieldRef Name="EventDate" /> <Value Type="DateTime"> <Today /> </Value></Geq>
The list it references is just a normal calendar.
Hope this helps?