hi, every body
I meet a strange problem in VFP 7.I declare a Class using

set classlib to myclass
store createobject ("myclass") to a

but when I launch a Method in the class

a.GetSqlData("Select * from txl order by name","temp")

I always get a error message "Syntax Error"
If I change the variable 'a' to 'a1' and launch

a1.GetSqLData("......")

I can get what I need.
A summary below is which single letter can't use:

a,b,c,....j and m

when I use 'm' as variable, I get another error message "File 'getsqldata.prg' doesnt exist"

I have never met this question in VFP 5/6 , Anybody has some idea?

TIA, Have a nice day!