Apple Mail flashes image of message when downloading messages
For the last several weeks Mail flashes the same image of an incoming message as each new message is downloaded to the Mac. This is about one second intervals and can take 20 seconds or so. Any other activity on the computer stops.
At first I thought it might be SpamSeive, which was upgraded, but disabling that program has made no difference.
Any ideas?
Thanks in advance !!!
iMac Line (2012 and Later)