Roller blind with installation frame

A screen assembly for a window comprising a screen supported by an elongate support member adapted to be mounted in an upper region of the window opening, a pair of mounting brackets being provided for attachment to respective sides of the window opening adjacent the top face of the window opening, each end of the elongate support member having an engaging device for engaging a respective mounting bracket, whereby the mounting brackets may be attached to the sides of the window opening such that the support member may be engaged onto the mounting brackets to mount the support member in the window opening, wherein each mounting bracket comprises a first part attachable to a respective side of the window opening and a second part adapted to be mounted on the first part, said second part being configured to engage a respective end of the elongate support member, wherein each second part of each mounting bracket includes at least one recess for receiving at least a portion of the first part of the respective mounting bracket, the recess defined by opposed perimeter sides, the perimeter sides of the recess being provided with vertically spaced formations configured to engage corresponding vertically spaced formations on laterally opposed sides of the first part,

• wherein said second part can be vertically adjusted on the respective first part in a plurality of vertically spaced positions to enable the relative position of the second part of each mounting bracket to be vertically adjusted on the first part, in use, in a substantially vertical direction.