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PC Plus HelpDesk - issue 209
This month, Paul Grosse gives you more insight into
some of the topics dealt with in HelpDesk.
We look at:
- Wandering Gamma;
- Stopping Pop-ups
And, for good measure, we include some tar.gz
theme files relating to issue 208's HelpDesk Extra.
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HelpDesk
 Wandering Gamma
On monitors that use LCD in some form or another,
there is a change to some extent of the values of the
mid-tones on the screen as you go from top to bottom, ie
change the angle from which you view a particular part of
the screen.
The image on the right has on the left a central band
of black and white, surrounded by two bands of mid-grey
(ie a chequered pattern of 0 and 255 and solid 127). The
three patterns on the right are the same but for each of
the primary colours.
I have made it sufficiently tall to cover the height
of most displays or at least a significant proportion of
the larger ones.
If you are looking at this on a CRT, you shouldn't see
any difference in the gamma up or down the screen.
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HelpDesk
Stopping pop-ups
Not including browser-specific vulnerability exploits,
pop-ups occur when you allow scripts to run. Ideally, you
would be able to stop them from running on all sites but
unfortunately, there are a number of sites that have been
designed in such a way that they will only function with
scripts being allowed. If these are of the 'one of many'
nature then they are of no consequence but unfortunately,
there are some of the more indispensable sites that fall
into this category: so, it is best to allow scripts to
run on these sites only therefore leave scripts as an
option.
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Internet Explorer:
 In Internet Explorer,
click on 'Tools' (1)/ 'Internet Options...' (2) then on
the 'Security' tab (3) on the options dialogue. Then
click on the 'Internet' icon (4) then, 'Custom Level...'
(5) and then, in the Security Settings, 'Settings' box,
select 'Prompt' for all 'AxtiveX controls and plug-ins'
options (6) and further down, for all 'Scripting'
options.
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Konqueror:
 In Konqueror, click
on 'Settings'/ Configure Konqueror, then...
 click on 'Java &
JavaScript' then on the 'JavaScript' tab, then un-check
'Enable javaScript Globally' and at the bottom, in 'Web
Popups policy', select 'Ask'.
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HelpDesk Extra - additional to issue 208
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