OLC Direct Claim with cai2igc.exe

I use a Cambridge Model 10 logger. I successfully
used StrePla 3.5 in 2006 to claim OLC flights. I'm
reluctant to upgrade StrePla for 69 EUR just to be
able to do the same thing I did last year. I have
used the cai2igc.exe file to convert my .cai files
to .igc with OLC's help and STILL cannot get a valid
claim. This is not rocket science for me, but very
frustrating.

Can anyone on RAS provide some advice or tell me what
I'm doing wrong? The command I use is the recommended
DOS command cai2igc xxxxxx.cai xxxxxxxx.igc. For the
record I use the command prompt in Windows XP SP1.

Many thanks for any help RAS lurkers can provide.

Rick