Sikpupi,
Without knowing which OS you are using etc., it is hard to answer exactly. Here is a reply from Microsoft on one known problem:
Unable to Configure Internet Shortcuts to Open Maximized
The information in this article applies to:
Microsoft Internet Explorer 5.0 for Windows NT 4.0
Microsoft Internet Explorer 5.0 for Windows 98
Microsoft Internet Explorer 5.0 for Windows 95
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This article was previously published under Q222496
SYMPTOMS
After you install Internet Explorer 5, you may be unable to configure Internet shortcuts in the Favorites folder to open in a maximized or full-screen window.
RESOLUTION
To work around this problem, click Maximize after you start Internet Explorer.
STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.
Take Care,
Capt. Richard J. Gentil, Pres.
Naples Air Center, Inc.
Custom Computers of Naples, Inc.