thanks aryeh for your reply --- while i *knew* in my gut it wouldn't be eset the program, i wondered whether there was something about it's configuration.
several weeks before, i had installed a wireless keyboard and mouse but part of the elimination, i reinstalled my wired peripherals, downloaded the update software and drivers without there being any impact on my problem.
hello don yes, i have installed all the updates and with all the reading i've done, i have become aware of the issues win7 has with sleep/wakeup [i don't have a hibernate option].
my computer is still under warranty so while i'm of the belief it is most likely a bios/motherboard issue, i'm reticent to perform such updates for the time being, looking at other aspects to avoid being charged for conditions caused by 'personal settings issues, configurations and downloads running other services not germane to the operating system'.
since making this post, i made some changes to how the desktop displays and while sleep/wakeup did for the past several days operate as expected, seemingly as a result, i did tonight experience a sync flood error; note please that i've not shutdown my computer for several days, maintaining it in sleep to wakeup to sleep mode so as to check its operation.
this is not the right forum to continue this discussion so i will report again, as necessary, in the appropriate place when i have something further to add.
thanks don for your post