Codeloader not working with single or dual integer PLL chips

Have codeloader version 4.6.1, program version 4.7.1.

When I select a single or  dual integer PLL I get an error message -" Run time error 13 - Type mismatch ".

If i select any other type of PLL, fractional etc the software works fine.

Have tried this on both Win7 and XP machines with the same result and a laptop running XP that used to work with codeloader.

Has something changed in the latest version or do I have some sort of problem.

Thanks for any assistance

Rex