@kday, I believe everyone should be GG for that one. OpenSNP is suggesting that 23andMe apparently had a number of no-calls for that SNP, so I think that may be why the allele frequency for the G allele (i.e., the normal allele) in the spreadsheet has the appearance of being so low for the ME/CFS patients.
edit: Spoke too soon. It is tallying the no calls. Argh! I thought I got that right! I'll have to correct.