Registration name mismatch

Hey friends,

I have a problem with my name on the identification documents and with my name i registered during GRE registration. Well i have already booked a slot for this july end.
In my Passport my name reads like this - "Srinivas Ambati Venkatesh"
where as while registering for GRE i have given it as "Srinivas A Venkatesh".. ie i havent expanded my middle/surname.
Will this be a problem during GRE exam or when applying for universities??
Even if I am allowed to write GRE, its good but will i face problems during the application and admission process. Also i have to register for TOFEL now. So Shall i register to TOFEL with the name as in passport or the name in GRE grade card??
Please help me out friends. I have very less time to apply.

If you haven't take GRE yet, you can call ETS and ask for the name change.
Better to change it now. ETS guys will help you..

I had mailed ETS ppl, this was the reply i got from them

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Thank you for contacting the GRE® Program.

Dear Srinivas,

Regarding your inquiry:

When registering for a GRE test, your first (given) name and last (family) name are required fields. You may indicate your middle initial on your registration, but it is not a required field.
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This reply form them is of no use. So i called my test centre. They convinced me that it is not a problrm and i ll be allowed to write the test.. I am scared if they turn the table on test day.
And wil this be a problem during admissions?