Entering a rate as 1000 causes the field to reset to 1

ERPNext
1

Hi all,
I’m having an extremely frustrating bug in my quotations docType at the moment.
If I try to set the rate field for an item to a value over 999.99 the field resets to 1,10,100 based on the magnitude of the value I enter:

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Then after I click off of that field:
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image1057×195 11.7 KB

10,000 goes to 100 on click off

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image1068×192 12 KB

see:
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We don’t have any client/server scripts running at the moment, or any permission levels restricting edit access to this field.
It’s an extremely frustrating and crippling issue - please advise.

Thank you,

Andy