iCloud Mail keeps freezes while composing emails
I am working on a decent PC (in an office with very fast broadband) using iCloud Mail in the latest Chrome browser.
Whenever I compose a new email (or compose a reply) things regularly freeze up for 10 to 30 seconds while I'm typing - which basically makes it unusable.
I have tried Firefox and Explorer (the PC does not have Safari) and the same thing happens.
Does anyone know what could be causing this?
Any help much appreciated!!
PC-OTHER, Windows 7